Venturing to the rear of her new campaign plane to tell the press (tongue-in-cheek) how happy she was to see them at long last? Crickets.

Mrs. Clinton can’t laugh this one off, because of a third problem...

3. Sour Press Relations. In March 2015, Mrs. Clinton told a roomful of Washington reporters that things were going to change. “A new grandchild. A new hairstyle. A new email account. A new relationship with the press. No more secrecy, no more zone of privacy . . . After all, what good did that do for me?”

Then the 2016 election: nine months without a formal press conference, spinning the email story, her minions complaining about unfair coverage.

The net result: no new relationship – and a press corps less willing to rush to her defense.

Consider the writings of The Washington Post’s Chris Cillizza. Five days ago, he called Mrs. Clinton’s health “a totally ridiculous issue”. Earlier today, he declared it “a real issue”. In other words: no more benefit of the doubt.

Yes, reporters are a fickle lot – even more so, when there’s no reservoir of good will.

4. Transparency. And why the distrust? Because of a pre-existing condition more chronic than any persistent cough: a lack of transparency.

Like the child who never gives you the complete truth on the first try, Mrs. Clinton historically has struggled to put controversies to bed by offering immediate and full disclosure.

With Sunday’s Medevac, the candidate’s health now risks falling into the same soup-to-nuts category as State Department emails and Rose Law firm billing records – stories that just wouldn’t go away because, no matter what the candidate says, one gets the sense it’s not quite the complete story.

Some will say she deserves the scrutiny. Others will contend it’s the stuff of overactive imaginations.

But this much seems certain: the more questions there are about Hillary Clinton’s health, the more likely her political condition deteriorates.